Portable rechargeable battery



FIG. 1 is a top perspective view of a portable rechargeable battery in accordance with our design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a first side view thereof;

FIG. 4 is a second side view thereof;

FIG. 5 is a third side view thereof;

FIG. 6 is fourth side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof. 

CLAIM The ornamental design for a portable rechargeable battery, as shown and described. 